Home / 189,780.32-284,660.73-56,661.68

Finding the Fourth Proportional to 189,780.32, 284,660.73 and 56,661.68

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Solution

The fourth proportional to 189,780.32, 284,660.73 and 56,661.68 is: 84,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,780.32 : 284,660.73 = 56,661.68 : x
  2. Step 2: Convert to fraction form
    189,780.32/284,660.73 = 56,661.68/x
  3. Step 3: Cross multiply
    189,780.32x = 284,660.73 × 56,661.68
  4. Step 4: Simplify right side
    189,780.32x = 16,129,355,191.83
  5. Step 5: Solve for x
    x = 16,129,355,191.83/189,780.32
  6. Step 6: Final answer
    x = 84,989.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.